Acer glabrum

Family: Aceraceae
Common Name: Rocky Mountain Maple
Symbol: ACGL
Description: Tree; to 10 m high, glabrous except for tomentose inner surface of bud scales; young twigs dark purplish-red to reddish-brown, the epidermis of older twigs flaking off in thin whitish sheets; buds covered with two valvate pink to red scales Leaves suborbicular in outline, 3-7 cm long, 3.5-9 cm wide, palmately 3-lobed (2 additional basal lobes sometimes present) or 3-foliolate.